/Engine/Source/Runtime/Engine/Classes/Engine/GameViewportClient.h
Called to map a cursor reply to an actual widget to render.
the widget that should be rendered for this cursor, returnTOptional<TSharedRef>() if no mapping.
virtual [TOptional](API\Runtime\Core\IO\TOptional)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > > MapCursor ( [FViewport](API\Runtime\Engine\FViewport) * Viewport, const [FCursorReply](API\Runtime\SlateCore\Input\FCursorReply) & CursorReply )